<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/userlogin" method="get">
  账号<input type="text" name="username"></input>
  密码<input type="password" name="password"></input>
  <input type="submit" value="登陆"></input>
</form>

</body>
</html>